package benworks.netty.in.action.transports;

import io.netty.bootstrap.ServerBootstrap;
import io.netty.buffer.ByteBuf;
import io.netty.buffer.Unpooled;
import io.netty.channel.ChannelFuture;
import io.netty.channel.ChannelFutureListener;
import io.netty.channel.ChannelHandlerContext;
import io.netty.channel.ChannelInboundHandlerAdapter;
import io.netty.channel.ChannelInitializer;
import io.netty.channel.EventLoopGroup;
import io.netty.channel.oio.OioEventLoopGroup;
import io.netty.channel.socket.SocketChannel;
import io.netty.channel.socket.oio.OioServerSocketChannel;

import java.net.InetSocketAddress;
import java.nio.charset.Charset;

/**
 * Using I/O and NIO with Netty
 * @author Ben
 * @date 2015年10月13日下午7:43:41
 */
public class NettyOioServer {
	public void server(int port) throws Exception {

		final ByteBuf buf = Unpooled.unreleasableBuffer(Unpooled.copiedBuffer("Hi!\r\n", Charset.forName("UTF-8")));
		EventLoopGroup group = new OioEventLoopGroup();
		try {
			ServerBootstrap b = new ServerBootstrap();
			b.group(group).channel(OioServerSocketChannel.class).localAddress(new InetSocketAddress(port))
					.childHandler(new ChannelInitializer<SocketChannel>() {
						@Override
						public void initChannel(SocketChannel ch) throws Exception {
							ch.pipeline().addLast(new ChannelInboundHandlerAdapter() {
								@Override
								public void channelActive(ChannelHandlerContext ctx) throws Exception {
									ctx.write(buf.duplicate()).addListener(ChannelFutureListener.CLOSE);
								}
							});
						}
					});
			ChannelFuture f = b.bind().sync();
			f.channel().closeFuture().sync();
		} finally {
			group.shutdownGracefully().sync();
		}

	}
}
